Elma Elmasonic Xtra ST Heavy-Duty Floor-Standing Ultrasonic Cleaner
| Brand | Elma |
|---|---|
| Origin | Germany |
| Model | Xtra ST |
| Capacity Range | 30–255 L |
| Ultrasonic Frequency | 25 / 45 kHz |
| Ultrasonic Power | 1000 W (adjustable up to 120% = 1200 W) |
| Temperature Control | 30–80 °C |
| Timer Range | 1–30 min or continuous |
| Sound-Insulated Lid | Yes |
| Manual Fill/Drain | Yes |
| Compliance | DIN EN ISO 9001 certified |
| Warranty | 3 years (single-shift operation) |
Overview
The Elma Elmasonic Xtra ST is a heavy-duty, floor-standing ultrasonic cleaner engineered for industrial-scale cleaning tasks in manufacturing, maintenance workshops, and high-throughput laboratory environments. Utilizing dual-frequency piezoelectric transducer technology (25 kHz and 45 kHz), it delivers controlled cavitation energy optimized for both macro-contaminant removal—such as machining oils, greases, and particulate residues—and delicate surface cleaning of precision components like PCBs, optical lenses, and medical instrument parts. The system operates on the principle of acoustic cavitation: high-frequency sound waves generate microscopic vacuum bubbles in the cleaning bath liquid; their implosive collapse releases localized energy sufficient to dislodge adherent soils without mechanical abrasion. Constructed from high-grade stainless steel (AISI 316L in critical wetted zones), the tank architecture supports continuous operation under demanding thermal and acoustic loads, with structural integrity validated per DIN 12878 and EN 61000-6-3 electromagnetic compatibility standards.
Key Features
- Dual-frequency operation (25 kHz for aggressive bulk cleaning; 45 kHz for fine-detail and low-damage applications)
- Dynamic Sweep Mode: Continuously modulates frequency within ±1 kHz bandwidth to eliminate standing wave nodes and ensure uniform energy distribution across the entire tank volume
- Pulse Boost Function: Temporarily increases ultrasonic power output to 120% (1200 W) for targeted removal of tenacious contaminants such as carbonized oil films or dried flux residues
- Precise digital temperature control (30–80 °C) with auto-start functionality—ultrasonics activate only after reaching setpoint, minimizing thermal shock to sensitive substrates
- Overtemperature safety cutoff at 90 °C, compliant with IEC 61000-4-11 voltage dip immunity requirements
- Programmable timer (1–30 minutes or continuous mode) with audible end-of-cycle alert
- Integrated sound-dampening lid with gas-spring assist for ergonomic operation and noise reduction to <65 dB(A) at 1 m distance
- Stainless-steel basket with dual-position mounting: submerged fixation or suspended drying configuration
Sample Compatibility & Compliance
The Xtra ST accommodates parts ranging from small electronic assemblies to large automotive castings (max. dimensions: 1200 × 600 × 350 mm, depending on model variant). Compatible with aqueous alkaline, neutral, and mildly acidic formulations—including Elma’s proprietary Cleanol and Solvon K4 series—as well as low-volatility solvents meeting GHS Category 3 flammability criteria. All models conform to EU Machinery Directive 2006/42/EC, RoHS 2011/65/EU, and carry CE marking. Optional documentation packages support GLP/GMP audit readiness, including IQ/OQ protocols aligned with ASTM D2603 (Standard Test Method for Sonic Shear Stability of Lubricants) and ISO 13850 (Emergency stop functions). Factory calibration certificates traceable to PTB (Physikalisch-Technische Bundesanstalt) are available upon request.
Software & Data Management
While the Xtra ST operates via an intuitive front-panel membrane keypad with LED status indicators, optional Elma NetLink interface enables RS-485 or Ethernet connectivity for integration into centralized facility monitoring systems. Logged parameters—including actual power draw, bath temperature history, cycle count, and fault codes—are exportable as CSV files for trend analysis and preventive maintenance scheduling. Audit trail functionality meets FDA 21 CFR Part 11 requirements when paired with Elma’s validated LabManager software suite (sold separately), supporting electronic signatures, user access levels, and immutable record retention.
Applications
- Automotive & aerospace: Degreasing engine blocks, transmission housings, turbine blades, and injection molds contaminated with cutting fluids, release agents, or carbon deposits
- Electronics manufacturing: Post-reflow cleaning of PCBs, removal of solder paste residues, and decontamination of MEMS sensors and connector housings
- Optics & precision engineering: Elimination of polishing compounds, fingerprint oils, and airborne particulates from lens elements, metrology fixtures, and watch components
- Mold & die shops: Recovery of EDM sludge, grinding swarf, and abrasive media from cavity surfaces prior to coating or inspection
- Research labs: Sample preparation for SEM/TEM analysis, catalyst substrate cleaning, and pre-analytical treatment of filtration membranes
FAQ
Is the Xtra ST suitable for use with flammable solvents?
No—this model is designed exclusively for aqueous and non-flammable solvent-based cleaning solutions. For flammable solvent applications, Elma offers the S series with ATEX-certified explosion-proof construction.
Can multiple tanks be synchronized for batch processing?
Yes—via Elma NetLink and external PLC triggering, up to eight Xtra ST units can be coordinated for sequential or parallel operation with shared temperature and timing logic.
What maintenance intervals are recommended for long-term reliability?
Transducer performance verification every 12 months; tank integrity inspection every 24 months; and replacement of the silicone gasket on the lid every 36 months under standard operating conditions.
Does Elma provide validation support for regulated industries?
Yes—qualified installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) documentation packages are available, developed in accordance with ISO/IEC 17025 and aligned with USP and ASTM E2875 standards.
